CN107118157A - The design and synthesis of diphenyl urea analog derivative antitumoral compounds of one class containing pyrazol framework - Google Patents

The design and synthesis of diphenyl urea analog derivative antitumoral compounds of one class containing pyrazol framework Download PDF

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CN107118157A
CN107118157A CN201710511604.6A CN201710511604A CN107118157A CN 107118157 A CN107118157 A CN 107118157A CN 201710511604 A CN201710511604 A CN 201710511604A CN 107118157 A CN107118157 A CN 107118157A
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compound
structural formula
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朱海亮
王泽峰
王鹏飞
石璐
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Nanjing University
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Nanjing University
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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D231/00Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings
    • C07D231/02Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings
    • C07D231/10Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
    • C07D231/14Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D231/38Nitrogen atoms
    • C07D231/40Acylated on said nitrogen atom

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Abstract

The invention discloses the diphenyl urea analog derivative of a class containing pyrazol framework and preparation method thereof, the structure of the diphenyl urea analog derivative containing pyrazol framework as shown in formula,Wherein, R1Selected from CH3、‑CH2CH3R2Selected from H, CF3‑Cl;R3Selected from H, CF3

Description

The design of diphenyl urea analog derivative antitumoral compounds of one class containing pyrazol framework with Synthesis
Technical field
The invention belongs to medicinal chemistry art, more particularly to the diphenyl urea analog derivative containing pyrazol framework and its preparation side Method.
Background technology
In recent years, with from cell, molecular level to the further understanding of Tumorigenesis, some produce in tumour and The large biological molecule such as the key signal path and membrane receptor that are played a significant role in development, kinases is disclosed so that for this A little efficient antineoplastics of tumor-specific molecule drone design low toxicity are possibly realized.Mitogen original activated protein kinase (MAPK) signal transduction pathway is one of intracellular most important signal path, and BRAF is the key members in path MAPK, greatly About 8% human tumor is found with V600E mutation BRAF (BRAFV600E), so as to cause downstream MEK-ERK signal paths to be held Continuous abnormal activation, growth to tumour, breeds, attacks and shifts most important.Therefore, BRAFV600EIt is current antineoplastic The popular target of research and development.
High flux virtual screening technology is the screening technique being commonly used.High flux virtual screening technology is by target protein The computational screening technology that high-resolution crystal structure is carried out as template.First, using high flux virtual screening technology with BRAFV600EAlbumen is that template filter comes out molecule of the skeleton.Then, using Discovery Studio softwares by molecule of the skeleton and BRAFV600EAlbumen carries out molecular docking, and corresponding modification transformation is carried out to it, obtains best molecule of the skeleton.
The content of the invention
BRAF is used as it is an object of the invention to provide a classV600EThe diphenyl ureas containing pyrazol framework of target spot inhibitor Derivative and preparation method thereof.
Technical scheme:Indole derivatives of one class containing pyrazol framework, its structure as shown in formula,
Wherein, R1Selected from-CH3、-CH2CH3R2It is selected from H、-CF3-Cl;R3Selected from H ,-CF3
A kind of method of the diphenyl urea analog derivative prepared containing pyrazol framework, the diphenyl ureas containing pyrazol framework The structure of derivative as shown in formula,
Wherein, R1Selected from-CH3、-CH2CH3R2It is selected from H、-CF3-Cl;R3Selected from H ,-CF3
Preparation method comprises the following steps,
Pyrazoles (14g, 205.64mmol) is dissolved in the concentrated sulfuric acid (50mL), then by concentrated nitric acid by step 1. at 0 DEG C (9.2M1,226.20mmol) is added dropwise, and temperature is heated slowly to 60 by whole reaction system by addition while stirring after terminating ℃.Whole reactant mixture agitating and heating is reacted into 1.5h.After question response terminates, reactant mixture is added to mixture of ice and water In (600g).Stand after a period of time, reactant mixture has white solid precipitation, is then separated by filtration white solid, will The white solid separated is dried after washing again, obtains the compound of a part of structural formula as indicated at a.By the filter after filtering Liquid is extracted with ethyl acetate (100mL × 3), obtains organic phase.Sodium bicarbonate solution (100mL), water organic phase with 1% (100mL) and saturated aqueous common salt (100mL) are rinsed successively.Finally, the ethyl acetate anhydrous sodium sulfate drying after will be treated And vacuum decompression evaporation drying obtains the compound of another part structural formula as indicated at a.
Compound (7.14mmol), structural formula compound as shown in B of the step 2. by structural formula as indicated at a It is sub- that (7.14mmol), 8-hydroxyquinoline (0.18g, 1.23mmol), potassium carbonate (1.8g, 13.02mmol) are dissolved in anhydrous dimethyl In sulfone (9mL), the container where reactant mixture is then poured into argon gas, cuprous iodide (0.135g, 0.69mmol) is added. Whole reaction system is heated to 130 DEG C, then agitating and heating reaction 20h.Suitable quantity of water is added to reaction by question response after terminating In system, a large amount of solids can be produced.Solid is separated by filtration and dries and separating-purifying is carried out to it using silica gel column chromatography, is obtained The compound of structural formula as shown at c.
The compound (4mmol) of structural formula as shown at c is dissolved in absolute ethyl alcohol (4mL) by step 3., is then added 80% hydrazine hydrate solution (2mL), 10% palladium carbon hydrogenation catalyst (0.08g).Then the temperature of reactant mixture is heated To 80 DEG C, reaction system is heated while stirring and reacted 10 minutes.After question response terminates, reactant mixture is filtered, filter is collected Liquid.Finally, filter vacuum is evaporated under reduced pressure and is dried to obtain the compound of structural formula as shown atd.
Gavaculine (2mmol) is dissolved in anhydrous tetrahydrofuran solution (15mL) by step 4., then by structure Compound (2mmol) of the formula as shown in E is slowly added into.Whole reaction system is placed in stirring reaction 60 hours under normal temperature.Deng anti- After should terminating, the white precipitate filtering of generation will be reacted, and with appropriate anhydrous methylene chloride or appropriate absolute ether Washing, to obtain compound of the pure structural formula as shown in F.
Step 5. is by compound (0.25mmol) of the structural formula as shown in F, EDC (0.25mmol), HOBT (0.25mmol) It is dissolved in dry DMF (5mL), reactant mixture is then positioned over stirring reaction 30 minutes under normal temperature., will after 30 minutes Structural formula compound (0.25mmol) as shown atd, DMAP (0.25mmol), triethylamine (1mL) are added in reactant mixture, Then reaction is stayed overnight while stirring at normal temperatures for whole reaction.After question response terminates, obtained reactant mixture saturated common salt Water and ethyl acetate (100mL × 3) extraction, finally, obtain crude product, and utilize silica gel by organic phase vacuum decompression evaporation drying Column chromatography carries out separating-purifying to it, obtains compound of the final structural formula as shown in G.
Wherein, R1Selected from-CH3、-CH2CH3R2It is selected from H、-CF3-Cl;R3Selected from H ,-CF3
Embodiment
In some specific embodiment, preparation process of the invention and the structural formula of associated products are as described below:
A kind of method for preparing the above-mentioned indole derivatives containing pyrazol framework, it comprises the following steps:
Pyrazoles (14g, 205.64mmol) is dissolved in the concentrated sulfuric acid (50mL), then by concentrated nitric acid by step 1. at 0 DEG C (9.2Ml, 226.20mmol) is added dropwise, and temperature is heated slowly to 60 by whole reaction system by addition while stirring after terminating ℃.Whole reactant mixture agitating and heating is reacted into 1.5h.After question response terminates, reactant mixture is added to mixture of ice and water In (600g).Stand after a period of time, reactant mixture has white solid precipitation, is then separated by filtration white solid, will The white solid separated is dried after washing again, obtains the compound of a part of structural formula as indicated at a.By the filter after filtering Liquid is extracted with ethyl acetate (100mL × 3), obtains organic phase.Sodium bicarbonate solution (100mL), water organic phase with 1% (100mL) and saturated aqueous common salt (100mL) are rinsed successively.Finally, the ethyl acetate anhydrous sodium sulfate drying after will be treated And vacuum decompression evaporation drying obtains the compound of another part structural formula as indicated at a.
Compound (7.14mmol), structural formula compound as shown in B of the step 2. by structural formula as indicated at a It is sub- that (7.14mmol), 8-hydroxyquinoline (0.18g, 1.23mmol), potassium carbonate (1.8g, 13.02mmol) are dissolved in anhydrous dimethyl In sulfone (9mL), the container where reactant mixture is then poured into argon gas, cuprous iodide (0.135g, 0.69mmol) is added. Whole reaction system is heated to 130 DEG C, then agitating and heating reaction 20h.Suitable quantity of water is added to reaction by question response after terminating In system, a large amount of solids can be produced.Solid is separated by filtration and dries and separating-purifying is carried out to it using silica gel column chromatography, is obtained The compound of structural formula as shown at c.
The compound (4mmol) of structural formula as shown at c is dissolved in absolute ethyl alcohol (4mL) by step 3., is then added 80% hydrazine hydrate solution (2mL), 10% palladium carbon hydrogenation catalyst (0.08g).Then the temperature of reactant mixture is heated To 80 DEG C, reaction system is heated while stirring and reacted 10 minutes.After question response terminates, reactant mixture is filtered, filter is collected Liquid.Finally, filter vacuum is evaporated under reduced pressure and is dried to obtain the compound of structural formula as shown atd.
Gavaculine (2mmol) is dissolved in anhydrous tetrahydrofuran solution (15mL) by step 4., then by structure Compound (2mmol) of the formula as shown in E is slowly added into.Whole reaction system is placed in stirring reaction 60 hours under normal temperature.Deng anti- After should terminating, the white precipitate filtering of generation will be reacted, and with appropriate anhydrous methylene chloride or appropriate absolute ether Washing, to obtain compound of the pure structural formula as shown in F.
Step 5. is by compound (0.25mmol) of the structural formula as shown in F, EDC (0.25mmol), HOBT (0.25mmol) It is dissolved in dry DMF (5mL), reactant mixture is then positioned over stirring reaction 30 minutes under normal temperature., will after 30 minutes Structural formula compound (0.25mmol) as shown atd, DMAP (0.25mmol), triethylamine (1mL) are added in reactant mixture, Then reaction is stayed overnight while stirring at normal temperatures for whole reaction.After question response terminates, obtained reactant mixture saturated common salt Water and ethyl acetate (100mL × 3) extraction, finally, obtain crude product, and utilize silica gel by organic phase vacuum decompression evaporation drying Column chromatography carries out separating-purifying to it, obtains compound of the final structural formula as shown in G.
Embodiment one:The preparation of N- (1- phenyl -1H- pyrazoles -4- bases) -3- (3- phenyl urea groups) benzamide (5a)
At 0 DEG C, pyrazoles (14g, 205.64mmol) is dissolved in the concentrated sulfuric acid (50mL), then by concentrated nitric acid (9.2Ml, 226.20mmol) it is added dropwise, temperature is heated slowly to 60 DEG C by whole reaction system by addition while stirring after terminating.Will be whole Individual reactant mixture agitating and heating reacts 1.5h.After question response terminates, reactant mixture is added to mixture of ice and water (600g) In.Stand after a period of time, reactant mixture has white solid precipitation, is then separated by filtration white solid, will isolate The white solid come is dried after washing again, obtains a part of product.By the filtrate after filtering with ethyl acetate (100mL × 3) Extraction, obtains organic phase.Organic phase with 1% sodium bicarbonate solution (100mL), water (100mL) and saturated aqueous common salt (100mL) is rinsed successively.Finally, ethyl acetate anhydrous sodium sulfate drying and vacuum decompression evaporation drying after will be treated Obtain product 4- nitropyrazoles.By 4- nitropyrazoles (7.14mmol), iodobenzene (7.14mmol), 8-hydroxyquinoline (0.18g, 1.23mmol), potassium carbonate (1.8g, 13.02mmol) is dissolved in anhydrous dimethyl sulfoxide (9mL), then by reactant mixture institute Container pour argon gas, add cuprous iodide (0.135g, 0.69mmol).Whole reaction system is heated to 130 DEG C, so Agitating and heating reacts 20h afterwards.Suitable quantity of water is added in reaction system by question response after terminating, and can produce a large amount of solids.By solid It is separated by filtration and dries and separating-purifying is carried out to it using silica gel column chromatography, obtains product 1- phenyl -4- nitropyrazoles.It will obtain Product 1- phenyl -4- nitropyrazoles (4mmol) be dissolved in absolute ethyl alcohol (4mL), then add 80% hydrazine hydrate solution (2mL), 10% palladium carbon hydrogenation catalyst (0.08g).Then the temperature of reactant mixture is heated to 80 DEG C, by reaction system Heat while stirring reaction 10 minutes.After question response terminates, reactant mixture is filtered, filtrate is collected.Finally, by filter vacuum Reduction vaporization is dried to obtain compound 1- phenyl -4- amino-pyrazols.Gavaculine (2mmol) is dissolved in anhydrous tetrahydrochysene furan Mutter in solution (15mL), be then slowly added into compound phenyl isocyanate (2mmol).Whole reaction system is placed under normal temperature Stirring reaction 60 hours.After terminating Deng reaction, the white precipitate filtering of generation will be reacted, and with appropriate anhydrous methylene chloride Or appropriate absolute ether washing, to obtain pure compound 3- (3- phenyl urea groups) benzoic acid.By compound 3- (3- phenyl Urea groups) benzoic acid (0.25mmol), EDC (0.25mmol), HOBT (0.25mmol) be dissolved in dry DMF (5mL), then will Reactant mixture is positioned over stirring reaction 30 minutes under normal temperature.After 30 minutes, compound 1- phenyl -4- amino-pyrazols (0.25mmol), DMAP (0.25mmol), triethylamine (1mL) are added in reactant mixture, then whole to react at normal temperatures Reaction is stayed overnight while stirring.After question response terminates, obtained reactant mixture saturated aqueous common salt and ethyl acetate (100mL × 3) extract, finally, organic phase vacuum decompression evaporation drying is obtained into crude product, and separation is carried out to it using silica gel column chromatography carry It is pure, obtain final compound N-(1- phenyl -1H- pyrazoles -4- bases) -3- (3- phenyl urea groups) benzamide.White solid, production Rate 84.1%, m.p.267.5~270.3 DEG C.1H NMR (600MHz, DMSO-d6)δ:10.64 (s, 1H, NH), 8.90 (s, 1H, NH), 8.74 (s, 1H, NH), 8.71 (s, 1H, ArH), 8.06 (s, 1H, CH), 7.94 (s, 1H, ArH), 7.83 (d, J= 7.8Hz, 2H, ArH), 7.67 (d, J=8.1Hz, 1H, CH), 7.60 (d, J=7.8Hz, 1H, ArH), 7.49 (td, J=15.1, 14.3,7.8Hz, 5H, ArH), 7.30 (t, J=9.9Hz, 3H, ArH), 6.99 (t, J=7.3Hz, 1H, ArH) .MS EI+: 397.44(C23H19N5O2, [M]+).
Embodiment two:The preparation of N- (1- methyl isophthalic acid H- pyrazoles -4- bases) -3- (3- phenyl urea groups) benzamide (5b)
Preparation method reference implementation example one.White solid, yield 84.6%, 300 DEG C of m.p. >.1H NMR (600MHz, DMSO-d6)δ:10.41 (s, 1H, NH), 8.87 (s, 1H, NH), 8.72 (s, 1H, NH), 8.04 (s, 1H, ArH), 7.99 (s, 1H, CH), 7.65 (d, J=9.4Hz, 1H, ArH), 7.58 (s, 1H, ArH), 7.54 (d, J=7.7Hz, 1H, ArH), 7.48 (d, J=7.7Hz, 2H, ArH), 7.42 (t, J=7.9Hz, 1H, ArH), 7.30 (t, J=7.9Hz, 2H, ArH), 6.99 (t, J= 7.3Hz, 1H, CH), 3.83 (s, 3H, CH3).MS EI+:335.37(C18H17N5O2, [M]+) and
Embodiment three:The preparation of N- (1- ethyl -1H- pyrazoles -4- bases) -3- (3- phenyl urea groups) benzamide (5c)
Preparation method reference implementation example one.White solid, yield 81.7%, m.p.254.9~256.3 DEG C.1H NMR (600MHz, DMSO-d6)δ:10.41 (s, 1H, NH), 8.87 (s, 1H, NH), 8.72 (s, 1H, NH), 8.07 (s, 1H, ArH), 7.99 (s, 1H, CH), 7.66 (d, J=6.9Hz, 1H, ArH), 7.60 (s, 1H, ArH), 7.55 (d, J=7.7Hz, 1H, ArH), 7.49 (d, J=7.9Hz, 2H, ArH), 7.43 (t, J=7.9Hz, 1H, CH), 7.30 (t, J=7.9Hz, 2H, ArH), 7.01- 6.97 (m, 1H, ArH), 4.13 (q, J=7.3Hz, 2H, CH2), 1.37 (t, J=7.3Hz, 3H, CH3).MS EI+:349.39 (C19H19N5O2, [M]+).
Example IV:The preparation of N- (1- benzyl -1H- pyrazoles -4- bases) -3- (3- phenyl urea groups) benzamide (5d)
Preparation method reference implementation example one.White solid, yield 85.4%, m.p.254.6~256.7 DEG C.1H NMR (600MHz, DMSO-d6)δ:10.45 (s, 1H, NH), 8.90 (s, 1H, NH), 8.75 (s, 1H, NH), 8.16 (s, 1H, ArH), 7.98 (s, 1H, CH), 7.65 (d, J=15.3Hz, 2H, ArH), 7.54 (d, J=7.8Hz, 1H, ArH), 7.48 (d, J= 7.7Hz, 2H, ArH), 7.42 (t, J=7.9Hz, 1H, ArH), 7.36 (t, J=7.4Hz, 2H, ArH), 7.30 (t, J= 7.9Hz, 3H, ArH), 7.26 (d, J=7.2Hz, 2H, ArH), 6.99 (t, J=7.3Hz, 1H, CH), 5.33 (s, 2H, CH2) .MS EI+:411.47(C24H21N5O2, [M]+).
Embodiment five:The system of 3- (3- phenyl urea groups)-N- (1- (p-methylphenyl) -1H- pyrazoles -4- bases) benzamide (5e) It is standby
Preparation method reference implementation example one.White solid, yield 86.3%, m.p.273.8~276.6 DEG C.1H NMR (600MHz, DMSO-d6)δ:10.63 (s, 1H, NH), 8.90 (s, 1H, NH), 8.74 (s, 1H, NH), 8.66 (s, 1H, ArH), 8.05 (s, 1H, CH), 7.90 (s, 1H, ArH), 7.69 (dd, J=14.9,8.2Hz, 3H, ArH), 7.59 (d, J=7.8Hz, 1H, CH), 7.50-7.44 (m, 3H, ArH), 7.32-7.29 (m, 4H, ArH), 6.99 (t, J=7.3Hz, 1H, ArH), 2.34 (s, 3H, CH3).MS EI+:411.47(C24H21N5O2, [M]+).
Embodiment six:N- (1- (4- methoxyphenyls) -1H- pyrazoles -4- bases) -3- (3- phenyl urea groups) benzamide (5f) Preparation
Preparation method reference implementation example one.White solid, yield 80.8%, m.p.277.8~280.6 DEG C.1H NMR (600MHz, DMSO-d6)δ:10.61 (s, 1H, NH), 8.90 (s, 1H, NH), 8.74 (s, 1H, NH), 8.60 (s, 1H, ArH), 8.05 (s, 1H, CH), 7.88 (s, 1H, ArH), 7.73 (d, J=9.0Hz, 2H, ArH), 7.67 (d, J=9.4Hz, 1H, CH), 7.59 (d, J=7.9Hz, 1H, ArH), 7.49 (d, J=7.6Hz, 2H, ArH), 7.45 (t, J=7.9Hz, 1H, ArH), 7.32- 7.28 (m, 2H, ArH), 7.06 (d, J=9.1Hz, 2H, ArH), 6.99 (t, J=7.3Hz, 1H, ArH), 3.80 (s, 3H, CH3).MS EI+:427.46(C24H21N5O3, [M]+).
Embodiment seven:N- (1- (3- methoxyphenyls) -1H- pyrazoles -4- bases) -3- (3- phenyl urea groups) benzamide (5g) Preparation
Preparation method reference implementation example one.White solid, yield 81.5%, m.p.220.6~223.1 DEG C.1H NMR (600MHz, DMSO-d6)δ:10.63 (s, 1H, NH), 8.90 (s, 1H, NH), 8.74 (s, 1H, NH), 8.72 (s, 1H, ArH), 8.06 (s, 1H, CH), 7.93 (s, 1H, ArH), 7.68 (d, J=8.0Hz, 1H, ArH), 7.59 (d, J=7.8Hz, 1H, CH), 7.49 (d, J=7.8Hz, 2H, ArH), 7.46 (t, J=7.9Hz, 1H, ArH), 7.40 (t, J=5.3Hz, 3H, ArH), 7.32- 7.29 (m, 2H, ArH), 6.99 (t, J=7.3Hz, 1H, ArH), 6.88 (dt, J=6.1,2.7Hz, 1H, ArH), 3.85 (s, 3H, CH3).MS EI+:427.46(C24H21N5O3, [M]+).
Embodiment eight:N- (1- methyl isophthalic acid H- pyrazoles -4- bases) -3- (3- (4- (trifluoromethyl) phenyl) urea groups) benzamide The preparation of (5h)
Preparation method reference implementation example one.Gray solid, yield 82.6%, m.p.271.3~273.5 DEG C.1H NMR (600MHz, DMSO-d6)δ:10.42 (s, 1H, NH), 9.16 (s, 1H, NH), 9.02 (s, 1H, NH), 8.04 (s, 1H, ArH), 8.01 (s, 1H, CH), 7.70 (d, J=8.7Hz, 2H, ArH), 7.68-7.64 (m, 3H, ArH), 7.58 (d, J=8.7Hz, 2H, ArH), 7.44 (t, J=7.9Hz, 1H, CH), 3.83 (s, 3H, CH3).MS EI+:403.37(C19H16F3N5O2, [M]+).
Embodiment nine:N- (1- ethyl -1H- pyrazoles -4- bases) -3- (3- (4- (trifluoromethyl) phenyl) urea groups) benzamide The preparation of (5i)
Preparation method reference implementation example one.White solid, yield 82.3%, m.p.238.2~240.9 DEG C.1H NMR (600MHz, DMSO-d6)δ:10.42 (s, 1H, NH), 9.16 (s, 1H, NH), 9.01 (s, 1H, NH), 8.07 (s, 1H, ArH), 8.01 (s, 1H, CH), 7.71-7.64 (m, 5H, ArH), 7.58 (d, J=16.0Hz, 2H, ArH), 7.45 (t, J=7.9Hz, 1H, ArH), 4.13 (q, J=7.3Hz, 2H, CH2), 1.37 (t, J=7.3Hz, 3H, CH3).MS EI+:417.39 (C20H18F3N5O2, [M]+).
Embodiment ten:N- (1- benzyl -1H- pyrazoles -4- bases) -3- (3- (4- (trifluoromethyl) phenyl) urea groups) benzamide The preparation of (5j)
Preparation method reference implementation example one.Yellow solid, yield 81.5%, m.p.258.8~261.3 DEG C.1H NMR (600MHz, DMSO-d6)δ:10.46 (s, 1H, NH), 9.17 (s, 1H, NH), 9.02 (s, 1H, NH), 8.16 (s, 1H, ArH), 8.00 (s, 1H, CH), 7.70-7.64 (m, 6H, ArH), 7.57 (d, J=7.7Hz, 1H, CH), 7.44 (t, J=7.9Hz, 1H, ArH), 7.36 (t, J=7.4Hz, 2H, ArH), 7.30 (t, J=7.3Hz, 1H, ArH), 7.26 (d, J=7.4Hz, 2H, ArH), 5.33 (s, 2H, CH2).MS EI+:479.46(C25H20F3N5O2, [M]+).
Embodiment 11:N- (1- phenyl -1H- pyrazoles -4- bases) -3- (3- (4- (trifluoromethyl) phenyl) urea groups) benzoyl The preparation of amine (5k)
Preparation method reference implementation example one.White solid, yield 80.1%, m.p.276.8~279.6 DEG C.1H NMR (400MHz, DMSO-d6)δ:10.65 (s, 1H, NH), 9.18 (s, 1H, NH), 9.04 (s, 1H, NH), 8.71 (s, 1H, ArH), 8.08 (s, 1H, CH), 7.94 (s, 1H, ArH), 7.83 (d, J=8.3Hz, 2H, ArH), 7.67 (dt, J=19.9,9.6Hz, 6H, ArH), 7.50 (dt, J=15.2,7.8Hz, 3H, ArH), 7.31 (t, J=7.3Hz, 1H, ArH) .MS EI+:465.44 (C24H18F3N5O2, [M]+).
Embodiment 12:N- (1- (p-methylphenyl) -1H- pyrazoles -4- bases) -3- (3- (4- (trifluoromethyl) phenyl) urea groups) The preparation of benzamide (5l)
Preparation method reference implementation example one.White solid, yield 80.5%, m.p.270.7~273.0 DEG C.1H NMR (400MHz, DMSO-d6)δ:10.63 (s, 1H, NH), 9.17 (s, 1H, NH), 9.04 (s, 1H, NH), 8.66 (s, 1H, ArH), 8.07 (s, 1H, CH), 7.91 (s, 1H, CH), 7.67 (dt, J=19.6,9.3Hz, 8H, ArH), 7.48 (t, J=7.9Hz, 1H, ArH), 7.30 (d, J=8.4Hz, 2H, ArH), 2.34 (s, 3H, CH3).MS EI+:479.46(C25H20F3N5O2, [M]+).
Embodiment 13:N- (1- (4- methoxyphenyls) -1H- pyrazoles -4- bases) -3- (3- (4- (trifluoromethyl) phenyl) Urea groups) benzamide (5m) preparation
Preparation method reference implementation example one.Yellow solid, yield 83.4%, m.p.282.0~284.0 DEG C.1H NMR (600MHz, DMSO-d6)δ:10.62 (s, 1H, NH), 9.18 (s, 1H, NH), 9.04 (s, 1H, NH), 8.60 (s, 1H, ArH), 8.07 (s, 1H, CH), 7.88 (s, 1H, ArH), 7.74 (s, 1H, ArH), 7.73 (s, 1H, CH), 7.70 (d, J=8.7Hz, 2H, ArH), 7.66 (t, J=8.0Hz, 3H, ArH), 7.62 (d, J=7.8Hz, 1H, ArH), 7.47 (t, J=7.9Hz, 1H, ArH), 7.06 (d, J=9.0Hz, 2H, ArH), 3.81 (s, 3H, CH3).MS EI+:495.46(C25H20F3N5O3, [M]+).
Embodiment 14:N- (1- (3- methoxyphenyls) -1H- pyrazoles -4- bases) -3- (3- (4- (trifluoromethyl) phenyl) Urea groups) benzamide (5n) preparation
Preparation method reference implementation example one.White solid, yield 82.2%, m.p.223.0~225.7 DEG C.1H NMR (600MHz, DMSO-d6)δ:10.65 (s, 1H, NH), 9.18 (s, 1H, NH), 9.04 (s, 1H, NH), 8.73 (s, 1H, ArH), 8.09 (s, 1H, CH), 7.94 (s, 1H, ArH), 7.70 (t, J=9.3Hz, 3H, ArH), 7.66 (d, J=8.8Hz, 2H, ArH), 7.63 (d, J=8.1Hz, 1H, CH), 7.48 (t, J=7.9Hz, 1H, ArH), 7.42-7.38 (m, 3H, ArH), 6.91-6.84 (m, 1H, ArH), 3.85 (s, 3H, CH3).MS EI+:495.46(C25H20F3N5O3, [M]+) and
Embodiment 15:N- (1- methyl isophthalic acid H- pyrazoles -4- bases) -3- (3- (4- Phenoxyphenyls) urea groups) benzamide The preparation of (5o)
Preparation method reference implementation example one.Yellow solid, yield 86.5%, m.p.243.8~247.6 DEG C.1H NMR (600MHz, DMSO-d6)δ:10.41 (s, 1H, NH), 8.87 (s, 1H, NH), 8.75 (s, 1H, NH), 8.03 (s, 1H, ArH), 7.98 (s, 1H, CH), 7.65 (d, J=8.1Hz, 1H, ArH), 7.58 (s, 1H, ArH), 7.54 (d, J=7.8Hz, 1H, ArH), 7.50 (d, J=8.9Hz, 2H, ArH), 7.42 (t, J=7.9Hz, 1H, ArH), 7.39-7.35 (m, 2H, ArH), 7.10 (t, J =7.4Hz, 1H, CH), 6.98 (dd, J=18.6,8.3Hz, 4H, ArH), 3.83 (s, 3H, CH3).MS EI+:427.46 (C24H21N5O3, [M]+) and
Embodiment 16:N- (1- ethyl -1H- pyrazoles -4- bases) -3- (3- (4- Phenoxyphenyls) urea groups) benzamide The preparation of (5p)
Preparation method reference implementation example one.Yellow solid, yield 84.4%, m.p.252.9~255.1 DEG C.1H NMR (600MHz, DMSO-d6)δ:10.40 (s, 1H, NH), 8.90 (s, 1H, NH), 8.78 (s, 1H, NH), 8.06 (s, 1H, ArH), 7.98 (s, 1H, CH), 7.66 (d, J=8.0Hz, 1H, ArH), 7.59 (s, 1H, ArH), 7.53 (d, J=7.8Hz, 1H, ArH), 7.50 (d, J=8.9Hz, 2H, ArH), 7.42 (t, J=7.9Hz, 1H, ArH), 7.39-7.36 (m, 2H, ArH), 7.10 (t, J =7.4Hz, 1H, CH), 6.98 (dd, J=18.2,8.3Hz, 4H, ArH), 4.12 (q, J=7.3Hz, 2H, CH2), 1.36 (t, J =7.3Hz, 3H, CH3).MS EI+:441.49(C25H23N5O3, [M]+) and
Embodiment 17:3- (3- (4- chloro- 3- (trifluoromethyl) phenyl) urea groups)-N- (1- methyl isophthalic acid H- pyrazoles -4- bases) The preparation of benzamide (5q)
Preparation method reference implementation example one.White solid, yield 81.1%, m.p.251.5~254.3 DEG C.1H NMR (600MHz, DMSO-d6)δ:10.41 (s, 1H, NH), 9.22 (s, 1H, NH), 9.06 (s, 1H, NH), 8.14 (d, J=2.5Hz, 1H, ArH), 8.03 (s, 1H, CH), 8.01 (s, 1H, ArH), 7.68-7.64 (m, 2H, ArH), 7.63 (d, J=8.8Hz, 1H, ArH), 7.57 (d, J=4.3Hz, 2H, ArH), 7.44 (t, J=7.9Hz, 1H, CH), 3.83 (s, 3H, CH3).MS EI+: 437.81(C19H15ClF3N5O2, [M]+) and
Embodiment 18:3- (3- (4- chloro- 3- (trifluoromethyl) phenyl) urea groups)-N- (1- ethyl -1H- pyrazoles -4- bases) The preparation of benzamide (5r)
Preparation method reference implementation example one.White solid, yield 82.9%, m.p.236.5~239 DEG C.1H NMR (600MHz, DMSO-d6)δ:10.41 (s, 1H, NH), 9.22 (s, 1H, NH), 9.06 (s, 1H, NH), 8.14 (s, 1H, ArH), 8.06 (s, 1H, CH), 8.01 (s, 1H, ArH), 7.64 (dd, J=17.4,7.9Hz, 3H, ArH), 7.61-7.56 (m, 2H, ArH), 7.44 (t, J=7.9Hz, 1H, CH), 4.12 (q, J=7.2Hz, 2H, CH2), 1.36 (t, J=7.2Hz, 3H, CH3).MS EI+:451.83(C20H17ClF3N5O2, [M]+) and
Embodiment 19:(1- benzyl -1H- pyrazoles -4- bases) -3- (3- (4- chloro- 3- (trifluoromethyl) phenyl) urea groups) benzene The preparation of formamide (5s)
Preparation method reference implementation example one.White solid, yield 85.5%, m.p.218.4~221.2 DEG C.1H NMR (600MHz, DMSO-d6)δ:10.45 (s, 1H, NH), 9.22 (s, 1H, NH), 9.05 (s, 1H, NH), 8.15 (s, 1H, ArH), 8.14 (d, J=2.4Hz, 1H, CH), 8.00 (s, 1H, ArH), 7.66 (q, J=4.8,3.3Hz, 2H, ArH), 7.63 (d, J= 10.4Hz, 2H, ArH), 7.57 (d, J=7.8Hz, 1H, ArH), 7.44 (t, J=7.9Hz, 1H, ArH), 7.36 (t, J= 7.4Hz, 2H, ArH), 7.30 (t, J=7.3Hz, 1H, CH), 7.26 (d, J=7.1Hz, 2H, ArH), 5.33 (s, 2H, CH2) .MS EI+:513.91(C25H19ClF3N5O2, [M]+) and
Embodiment 20:3- (3- (4- chloro- 3- (trifluoromethyl) phenyl) urea groups)-N- (1- phenyl -1H- pyrazoles -4- bases) The preparation of benzamide (5t)
Preparation method reference implementation example one.White solid, yield 82.8%, m.p.241.8~241.6 DEG C.1H NMR (600MHz, DMSO-d6)δ:10.65 (s, 1H, NH), 9.24 (s, 1H, NH), 9.09 (s, 1H, NH), 8.71 (s, 1H, ArH), 8.15 (d, J=2.5Hz, 1H, CH), 8.09 (s, 1H, ArH), 7.94 (s, 1H, ArH), 7.83 (d, J=7.6Hz, 2H, ArH), 7.70-7.66 (m, 2H, ArH), 7.63 (d, J=8.4Hz, 2H, ArH), 7.49 (dt, J=19.2,7.7Hz, 3H, ArH), 7.31 (t, J=7.4Hz, 1H, ArH) .MS EI+:499.88(C24H17ClF3N5O2, [M]+) and
Embodiment 21:3- (3- (4- chloro- 3- (trifluoromethyl) phenyl) urea groups)-N- (1- (p-methylphenyl) -1H- pyrroles Azoles -4- bases) benzamide (5u) preparation
Preparation method reference implementation example one.White solid, yield 80.3%, m.p.287.7~290.2 DEG C.1H NMR (600MHz, DMSO-d6)δ:10.63 (s, 1H, NH), 9.24 (s, 1H, NH), 9.08 (s, 1H, NH), 8.65 (s, 1H, ArH), 8.16 (s, 1H, CH), 8.08 (s, 1H, ArH), 7.90 (s, 1H, ArH), 7.72-7.66 (m, 4H, ArH), 7.63 (d, J= 8.9Hz, 2H, ArH), 7.47 (t, J=7.9Hz, 1H, ArH), 7.30 (d, J=8.1Hz, 2H, ArH), 2.34 (s, 3H, CH3) .MS EI+:513.91(C25H19ClF3N5O2, [M]+) and
Embodiment 22:3- (3- (4- chloro- 3- (trifluoromethyl) phenyl) urea groups)-N- (1- (4- methoxyphenyls)- 1H- pyrazoles -4- bases) benzamide (5v) preparation
Preparation method reference implementation example one.White solid, yield 81.7%, m.p.292.2~294.7 DEG C.1H NMR (600MHz, DMSO-d6)δ:10.61 (s, 1H, NH), 9.24 (s, 1H, NH), 9.08 (s, 1H, NH), 8.60 (s, 1H, ArH), 8.15 (d, J=2.5Hz, 1H, CH), 8.08 (s, 1H, ArH), 7.88 (s, 1H, ArH), 7.73 (d, J=9.0Hz, 2H, ArH), 7.68 (d, J=8.5Hz, 2H, ArH), 7.63 (d, J=8.6Hz, 2H, ArH), 7.47 (t, J=7.9Hz, 1H, CH), 7.06 (d, J=9.1Hz, 2H, ArH), 3.80 (s, 3H, CH3).MS EI+:529.90(C25H19ClF3N5O3, [M]+) and
Embodiment 23:3- (3- (4- chloro- 3- (trifluoromethyl) phenyl) urea groups)-N- (1- (3- methoxyphenyls)- 1H- pyrazoles -4- bases) benzamide (5w) preparation
Preparation method reference implementation example one.White solid, yield 88.5%, m.p.236.6~239.3 DEG C.1H NMR (600MHz, DMSO-d6)δ:10.64 (s, 1H, NH), 9.24 (s, 1H, NH), 9.09 (s, 1H, NH), 8.71 (s, 1H, ArH), 8.15 (d, J=2.5Hz, 1H, CH), 8.08 (s, 1H, ArH), 7.92 (s, 1H, ArH), 7.69-7.66 (m, 2H, ArH), 7.63 (d, J=9.3Hz, 2H, ArH), 7.47 (t, J=7.9Hz, 1H, CH), 7.40 (t, J=6.4Hz, 3H, ArH), 6.89-6.87 (m, 1H, ArH), 3.85 (s, 3H, CH3).MS EI+:529.90(C25H19ClF3N5O3, [M]+) and
The preferred embodiment of the present invention described in detail above, still, the present invention are not limited in above-mentioned embodiment Detail, in the range of the technology design of the present invention, a variety of equivalents can be carried out to technical scheme, this A little equivalents belong to protection scope of the present invention.It is further to note that described in above-mentioned embodiment Each particular technique feature, in the case of reconcilable, can be combined by any suitable means.In order to avoid not Necessary repetition, the present invention no longer separately illustrates to various possible combinations.In addition, a variety of implementations of the present invention It can also be combined between mode, as long as it is without prejudice to the thought of the present invention, it is public that it should equally be considered as institute of the invention The content opened.

Claims (4)

1. diphenyl urea analog derivative of the class containing pyrazol framework, its structure as shown in formula,
Wherein, R1Selected from-CH3、-CH2CH3R2Selected from H ,- CF3-Cl;R3Selected from H ,-CF3
2. a kind of method of the diphenyl urea analog derivative prepared containing pyrazol framework, the diphenyl ureas containing pyrazol framework spreads out Biological structure as shown in formula,
Wherein, R1Selected from-CH3、-CH2CH3R2Selected from H ,- CF3-Cl;R3Selected from H ,-CF3
Preparation method comprises the following steps,
Pyrazoles (14g, 205.64mmol) is dissolved in the concentrated sulfuric acid (50mL), then by concentrated nitric acid by step 1. at 0 DEG C (9.2Ml, 226.20mmol) is added dropwise, and temperature is heated slowly to 60 by whole reaction system by addition while stirring after terminating ℃.Whole reactant mixture agitating and heating is reacted into 1.5h.After question response terminates, reactant mixture is added to mixture of ice and water In (600g).Stand after a period of time, reactant mixture has white solid precipitation, is then separated by filtration white solid, will The white solid separated is dried after washing again, obtains the compound of a part of structural formula as indicated at a.By the filter after filtering Liquid is extracted with ethyl acetate (100mL × 3), obtains organic phase.Sodium bicarbonate solution (100mL), water organic phase with 1% (100mL) and saturated aqueous common salt (100mL) are rinsed successively.Finally, the ethyl acetate anhydrous sodium sulfate drying after will be treated And vacuum decompression evaporation drying obtains the compound of another part structural formula as indicated at a.
Step 2. by compound (7.14mmol) of the structural formula compound (7.14mmol), structural formula as indicated at a as shown in B, 8-hydroxyquinoline (0.18g, 1.23mmol), potassium carbonate (1.8g, 13.02mmol) are dissolved in anhydrous dimethyl sulfoxide (9mL), so The container where reactant mixture is poured into argon gas afterwards, cuprous iodide (0.135g, 0.69mmol) is added.By whole reactant System is heated to 130 DEG C, then agitating and heating reaction 20h.Suitable quantity of water is added in reaction system by question response after terminating, and can be produced A large amount of solids.Solid is separated by filtration and dries and separating-purifying is carried out to it using silica gel column chromatography, structural formula is obtained as shown at c Compound.
The compound (4mmol) of structural formula as shown at c is dissolved in absolute ethyl alcohol (4mL) by step 3., then adds 80% Hydrazine hydrate solution (2mL), 10% palladium carbon hydrogenation catalyst (0.08g).Then the temperature of reactant mixture is heated to 80 DEG C, Reaction system is heated while stirring and reacted 10 minutes.After question response terminates, reactant mixture is filtered, filtrate is collected.Finally, Filter vacuum is evaporated under reduced pressure and is dried to obtain the compound of structural formula as shown atd.
Gavaculine (2mmol) is dissolved in anhydrous tetrahydrofuran solution (15mL) by step 4., then by structural formula such as E Shown compound (2mmol) is slowly added into.Whole reaction system is placed in stirring reaction 60 hours under normal temperature.Terminate Deng reaction Afterwards, the white precipitate for reacting generation is filtered, and washed with appropriate anhydrous methylene chloride or appropriate absolute ether, with Obtain compound of the pure structural formula as shown in F.
Step 5. dissolves compound (0.25mmol) of the structural formula as shown in F, EDC (0.25mmol), HOBT (0.25mmol) In dry DMF (5mL), reactant mixture is then positioned over stirring reaction 30 minutes under normal temperature.After 30 minutes, by structure Formula compound (0.25mmol) as shown atd, DMAP (0.25mmol), triethylamine (1mL) are added in reactant mixture, then Reaction is stayed overnight while stirring at normal temperatures for whole reaction.After question response terminates, obtained reactant mixture saturated aqueous common salt and Ethyl acetate (100mL × 3) is extracted, and finally, organic phase vacuum decompression evaporation drying is obtained into crude product, and utilize silica gel column layer Analysis carries out separating-purifying to it, obtains compound of the final structural formula as shown in G.
Wherein, R1Selected from-CH3、-CH2CH3 R2Selected from H ,-CF3-Cl;R3Selected from H ,-CF3
3. application of the diphenyl urea analog derivative in cancer therapy drug is prepared containing pyrazol framework, it is characterised in that its structure is such as Shown in formula
Wherein, R1Selected from-CH3、-CH2CH3R2Selected from H ,-CF3-Cl;R3Selected from H ,-CF3
4. a kind of cancer therapy drug, it is characterised in that including compound of the structure as shown in formula and medically acceptable carrier,
Wherein, R1Selected from-CH3、-CH2CH3R2Selected from H ,-CF3-Cl;R3Selected from H ,-CF3
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CN111848506B (en) * 2020-08-21 2023-01-31 中国药科大学 Biphenyl urea compound and pharmaceutical composition, preparation method and application thereof

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